You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
139 lines
4.1 KiB
139 lines
4.1 KiB
14 years ago
|
#ifndef Py_CEVAL_H
|
||
|
|
#define Py_CEVAL_H
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* Interface to random parts in ceval.c */
|
||
|
|
|
||
|
|
PyAPI_FUNC(PyObject *) PyEval_CallObjectWithKeywords(
|
||
|
|
PyObject *, PyObject *, PyObject *);
|
||
|
|
|
||
|
|
/* DLL-level Backwards compatibility: */
|
||
|
|
#undef PyEval_CallObject
|
||
|
|
PyAPI_FUNC(PyObject *) PyEval_CallObject(PyObject *, PyObject *);
|
||
|
|
|
||
|
|
/* Inline this */
|
||
|
|
#define PyEval_CallObject(func,arg) \
|
||
|
|
PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL)
|
||
|
|
|
||
|
|
PyAPI_FUNC(PyObject *) PyEval_CallFunction(PyObject *obj, char *format, ...);
|
||
|
|
PyAPI_FUNC(PyObject *) PyEval_CallMethod(PyObject *obj,
|
||
|
|
char *methodname, char *format, ...);
|
||
|
|
|
||
|
|
PyAPI_FUNC(void) PyEval_SetProfile(Py_tracefunc, PyObject *);
|
||
|
|
PyAPI_FUNC(void) PyEval_SetTrace(Py_tracefunc, PyObject *);
|
||
|
|
|
||
|
|
struct _frame; /* Avoid including frameobject.h */
|
||
|
|
|
||
|
|
PyAPI_FUNC(PyObject *) PyEval_GetBuiltins(void);
|
||
|
|
PyAPI_FUNC(PyObject *) PyEval_GetGlobals(void);
|
||
|
|
PyAPI_FUNC(PyObject *) PyEval_GetLocals(void);
|
||
|
|
PyAPI_FUNC(struct _frame *) PyEval_GetFrame(void);
|
||
|
|
PyAPI_FUNC(int) PyEval_GetRestricted(void);
|
||
|
|
|
||
|
|
/* Look at the current frame's (if any) code's co_flags, and turn on
|
||
|
|
the corresponding compiler flags in cf->cf_flags. Return 1 if any
|
||
|
|
flag was set, else return 0. */
|
||
|
|
PyAPI_FUNC(int) PyEval_MergeCompilerFlags(PyCompilerFlags *cf);
|
||
|
|
|
||
|
|
PyAPI_FUNC(int) Py_FlushLine(void);
|
||
|
|
|
||
|
|
PyAPI_FUNC(int) Py_AddPendingCall(int (*func)(void *), void *arg);
|
||
|
|
PyAPI_FUNC(int) Py_MakePendingCalls(void);
|
||
|
|
|
||
|
|
PyAPI_FUNC(void) Py_SetRecursionLimit(int);
|
||
|
|
PyAPI_FUNC(int) Py_GetRecursionLimit(void);
|
||
|
|
|
||
|
|
PyAPI_FUNC(char *) PyEval_GetFuncName(PyObject *);
|
||
|
|
PyAPI_FUNC(char *) PyEval_GetFuncDesc(PyObject *);
|
||
|
|
|
||
|
|
PyAPI_FUNC(PyObject *) PyEval_GetCallStats(PyObject *);
|
||
|
|
|
||
|
|
/* this used to be handled on a per-thread basis - now just two globals */
|
||
|
|
PyAPI_DATA(volatile int) _Py_Ticker;
|
||
|
|
PyAPI_DATA(int) _Py_CheckInterval;
|
||
|
|
|
||
|
|
/* Interface for threads.
|
||
|
|
|
||
|
|
A module that plans to do a blocking system call (or something else
|
||
|
|
that lasts a long time and doesn't touch Python data) can allow other
|
||
|
|
threads to run as follows:
|
||
|
|
|
||
|
|
...preparations here...
|
||
|
|
Py_BEGIN_ALLOW_THREADS
|
||
|
|
...blocking system call here...
|
||
|
|
Py_END_ALLOW_THREADS
|
||
|
|
...interpret result here...
|
||
|
|
|
||
|
|
The Py_BEGIN_ALLOW_THREADS/Py_END_ALLOW_THREADS pair expands to a
|
||
|
|
{}-surrounded block.
|
||
|
|
To leave the block in the middle (e.g., with return), you must insert
|
||
|
|
a line containing Py_BLOCK_THREADS before the return, e.g.
|
||
|
|
|
||
|
|
if (...premature_exit...) {
|
||
|
|
Py_BLOCK_THREADS
|
||
|
|
PyErr_SetFromErrno(PyExc_IOError);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
An alternative is:
|
||
|
|
|
||
|
|
Py_BLOCK_THREADS
|
||
|
|
if (...premature_exit...) {
|
||
|
|
PyErr_SetFromErrno(PyExc_IOError);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
Py_UNBLOCK_THREADS
|
||
|
|
|
||
|
|
For convenience, that the value of 'errno' is restored across
|
||
|
|
Py_END_ALLOW_THREADS and Py_BLOCK_THREADS.
|
||
|
|
|
||
|
|
WARNING: NEVER NEST CALLS TO Py_BEGIN_ALLOW_THREADS AND
|
||
|
|
Py_END_ALLOW_THREADS!!!
|
||
|
|
|
||
|
|
The function PyEval_InitThreads() should be called only from
|
||
|
|
initthread() in "threadmodule.c".
|
||
|
|
|
||
|
|
Note that not yet all candidates have been converted to use this
|
||
|
|
mechanism!
|
||
|
|
*/
|
||
|
|
|
||
|
|
PyAPI_FUNC(PyThreadState *) PyEval_SaveThread(void);
|
||
|
|
PyAPI_FUNC(void) PyEval_RestoreThread(PyThreadState *);
|
||
|
|
|
||
|
|
#ifdef WITH_THREAD
|
||
|
|
|
||
|
|
PyAPI_FUNC(void) PyEval_InitThreads(void);
|
||
|
|
PyAPI_FUNC(void) PyEval_AcquireLock(void);
|
||
|
|
PyAPI_FUNC(void) PyEval_ReleaseLock(void);
|
||
|
|
PyAPI_FUNC(void) PyEval_AcquireThread(PyThreadState *tstate);
|
||
|
|
PyAPI_FUNC(void) PyEval_ReleaseThread(PyThreadState *tstate);
|
||
|
|
PyAPI_FUNC(void) PyEval_ReInitThreads(void);
|
||
|
|
|
||
|
|
#define Py_BEGIN_ALLOW_THREADS { \
|
||
|
|
PyThreadState *_save; \
|
||
|
|
_save = PyEval_SaveThread();
|
||
|
|
#define Py_BLOCK_THREADS PyEval_RestoreThread(_save);
|
||
|
|
#define Py_UNBLOCK_THREADS _save = PyEval_SaveThread();
|
||
|
|
#define Py_END_ALLOW_THREADS PyEval_RestoreThread(_save); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#else /* !WITH_THREAD */
|
||
|
|
|
||
|
|
#define Py_BEGIN_ALLOW_THREADS {
|
||
|
|
#define Py_BLOCK_THREADS
|
||
|
|
#define Py_UNBLOCK_THREADS
|
||
|
|
#define Py_END_ALLOW_THREADS }
|
||
|
|
|
||
|
|
#endif /* !WITH_THREAD */
|
||
|
|
|
||
|
|
PyAPI_FUNC(int) _PyEval_SliceIndex(PyObject *, int *);
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif /* !Py_CEVAL_H */
|